Machine for making rivets, &amp;c.



2 SHEETS-SHEET 1- H INVENTOR OLLO Qshlm,

I J MW, Atty's PATENTED FEB. 26, 1907.

O. BRIEDE.

MACHINE FOR MAKING RIVBTS, 6:0.

APPLICATION FILED MAY 23, 1905.

; FIRE.

FIGZ.

WITNESSES:

(/WZ O/M No. 845,331. PATENTED FEB. 26, 19071 0. BRIEDE.

MACHINE FOR MAKING RIVETS, &o I

APPLHJATIONIILED my 23. 1905.

2 SHEETS-SHEET 2.

/ INVENTOR WITN ESSES:

' UNiT D' STATES PATENT foFrIoE.

' OTT B'RInDE, FBE BA H, GERMAN-Y.

\MACHINIE. FORMMAKING sl vers. &c,-

To all whom/it may concern: I

Be it known that I, OTTO BRIEDE, a subject of the Germandtmperor, residing at Ben rath near Dusseldorf, Germany, a citizen of 5 Benrath, near Dusseldorf, have invented or.

discovered certain new and useful Improve ments in Machines for Making Rivets, &c., of which improvements the following isa specification.

In an application filed on or about October 3', 1 04, and numbered serially 227,072 I hav described and shown'certain improvements in machines for the manufacture of bolts, rivets, &c.,

The invention described herein relates to certain improvements in that part of the mechanism shown in the application referred to employed for feeding the rod and cutting the blanks from the end thereof.

The invention is hereinafter morefully described and claimed.

In the accompanying drawings, forming a part of this specification, Figure 1 is a sectional elevation showing the feeding mechanism,

2 5 the shearing mechanism, and one of the holders in which the blank isheld while being upset or headed. Fig. 2 is a view similar to 1, showing the several parts in the osition they occupy after the shearing of a b ank,

and Fig. 3 is a view looking in the direction of the arrow a in Fig. 1, the blank-holder being omitted. Figs. 4 and 5 are views similar to Figs. 1 and 2 and illustrate a modification in the construction of the feed-mechanism, and

5 Fig. 6 is a side view of the knives in the position shown in Fig. 4.

I In the practice of my invention as illus: trated in Figs. 1, 2, and 3 the arms 4 of the feed mechanism described in the application 4.0 referred to are pivotally mounted, as stated in said application, upon a sliding bed 2,

which is operated back and forth in a manner substantially similar to that employed in said machine. These arms are rovided with gripping edges to grasp the ar from which the rivets are to be formed and are adapted to be moved toward and from each other by means of angular slots formed in a block 9,-n1ovable back and forth on the slide,

pins 12 on the arms projecting into such slots. As stated in said application, the block is connected to an operating-lever whereby the reciprocation of the parts is efie'cted, the slide being moved by the block 9. In lieu of employin four radially-acting blades, as describe in said application, I employ two Specification of Letteg's Patentl' Application and May 28,-190 5-' Serial No. 261.315.

while in the position shown in Fig. 1.

' ingor abutment 5 Patented Feb. 26," 1907.

blades20 and 21, movable toward and from each other by any suitable means known in the art, but preferably that emplo ed in the application referredto; One of t e blades,

as 20 is provided with a notch or groove in its operative end, and theother blade is provided with an eye I), through which the rod from w ich the rivets are to be cut is passed.

In t e operation of the construction shown in Figs. 1,2, and 3- the bar or rod from which the rivets, &c., are to be cut is passed througha guide-block 1, mounted on the slide 2. This block, as shown, is providedwith a flaring mouth and with curved bearing portions for the rod;"so that the latter may be moved laterall- ,as hereinafter described. By the forwar movement of the slide 2, the jaws on V the levers 4 being in engagement with the rod, the latter is pushed through the eye in the blade 21 into the blank-holder 36. The blades 20 and 21 are then moved toward each other, the blade 20 having a stroke suflicient to cause itto bear firmlyagainst the rod The blade 21 moving along the blade 20 will shear the rod and also will deflect the inner end of the rod to oneside, as indicated in Fig. 2, without drawing the inner end of the rod from the eye. movement of the blades, and preferably beginning just as the blades get a grip on the rod, the slide 2 is moved backward so as to open the jaws, as shown in Fig. 2, and thereby,permit of the deflection of the inner end of the rod, as shown. A

In lieu of the construction shown in Figs. 1, 2, and 3 I mayemploy that shown in Figs. 4, 5, and 6. In' this construction a block 2 is movably mounted upon a bed 3 and has formed thereon a guiding-eye 1 and a bear- A bell-crank lever 4 is pivotally mounted on the block 2 in such osition that a jaw on one of the arms of the ell-crank will operate in conjunction with the abutment 5 togrip the bar or rod. The opening and closing movement of the gri pmg members is effected preliminary to t e movementof the slide by the operation of suitable mechanism connected to the tail of the bell-crank, and the movement of the slide itself is effected by the bell-crank. When the bell-crank is shifted to close the jaws on the rod, it will be held from further movement independent of the slide. and the latter will be thereafter moved forward by the lever. When the lever is moved in the oppoblade 20 is secured to the bed on which the slide 1noves,.and the blade 21 is reciprocated back and forth by any suitable means. In

this construction, as in that shown in Figs. 1,

, 2, and 3, the jaws areopened and the slide moved backward immediately after the blades have by the movement of the movablenfembcr gripped the bar or rod.,--By this opening of the jaws the deflection of the inner end ofthe bar or rod is permitted.

I claim herein as my invent1on-- 1. In a machine for makin rivets, &c., the

- combination of shearing blad es, one movable relative to the other, a reci rocating slide, gripping-jaws carried by the s ide, one of said jawsmovable with one-of the blades during the shearing operation. I

2. In a machine for makin rivets, &c., the combination of shearing-bla' es, one movable relative to the other, a reciprocatirig slide, gri ping-jaws carried by the slide, means for shi ting one of the jaws with one of the blades during the shearing operation, and connectiofis whereby the slide is shifted by the movable jaw.

3. In a machine for making rivets, &c., the combination of shearing-blades, one of said blades bein provided with an eye for the reception of t e'bar or rod to be sheared, a reciprocating slide, gri ping-'aws carried by the slide and means 'orshiiting one of said jaws with the blade having the eye.

4. In a machine for making rivets, &c. the combination of shearing-blades one of said blades provided with an eye and the other blade having a notch or recess in line with the eye in the other blade, a reciprocating slide, gripping-jaws carriedby the slide and means for moving one of said j aws with the blade having the eye.

In testimony whereof I have hereunto set my hand OTTO BRIEDE. Witnesses:

WILLIAM ESSENWEIN, FRANK HEssENBUoH. 

